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Study on Synthesis of Hydroxycitric Acid(PDF)

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2001年03期
Page:
282-285
Research Field:
Publishing date:

Info

Title:
Study on Synthesis of Hydroxycitric Acid
Author(s):
ChenLi QingJidong HeShengfen
School of Chemical Engineering,NUST,Nanjing 210094
Keywords:
dehy drat ion oxidation aconit ic acid hy drocycitric acid
PACS:
TQ223
DOI:
-
Abstract:
Hydroxy citric acid is prepared by cit ric acid.Hydroxycit ric acid is obtained by aconit ic acid w ith ox idat ion, which is obtained by cit ric acid w ith dehy drat ion. The opt imum condit ions of aconit ic acid and hydroxy citric acid are studied separately . The opt imum condition for aconit ic acid is that 1 mol citric acid reacts w ith 56 % sulfuric 270 ml to obtain aconit ic acid after 7- hour reflux, in 140 ℃ . Its. m. p. is 186 ℃ . Because w aste acid and unreacted cit ric acid are used cy clically , reclaimed citric acid is 28 % and reclaimed sulfuric acid is 65 % . The opt-i mum condition for hydrox ycitric acid is that 2 mol ox idant reacts w ith 1 mol aconitic acid in 50 e , for 7- hour, and obtains hydroxy citric acid, w hose yield is about 80 %.

References:

1 Bruce W F. Aconitic acid. Org Sy n, 1943( 2) : 12
2 魏文佳.有机化工原料大全( 第2 卷). 北京: 化学工业出版社, 19941542
3 王葆仁.有机合成反应1 北京: 科学出版社, 1981
4 顾可权, 林吉文. 有机合成化学. 上海: 上海科技出版社, 1987

Memo

Memo:
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Last Update: 2013-03-25